Erie police said a dropped cell phone helped them identify a man accused of snatching prescription drugs from a man in a wheelchair on the city's west side earlier this month.

Jason I. Speed, 32, was arrested in the 700 block of East Sixth Street shortly before 1 a.m. Friday on charges related to the robbery, which police said happened in the 1100 block of Cherry Street at about 4:35 p.m. Nov. 15.

Police accuse Speed of grabbing prescription drugs from a man while the victim was traveling south on Cherry Street in his motorized wheelchair. The victim told police that the robber ripped the drugs out of his hands, according to the criminal complaint.

Police did not disclose the type of drugs that were taken.

The victim was not injured in the robbery, police said.

The man ran off after the robbery, but dropped his cell phone. The phone contained a photo of a man whom the victim identified as the person who robbed him. The officer who took the victim's report identified the person in the photo as Speed, based on "previous incidents," police wrote in the affidavit of probable cause that accompanied the criminal complaint.

The victim was interviewed by Erie police detectives the day after the robbery, and he identified Speed as the robber from a photo lineup, according to the affidavit.

Police filed charges of robbery, theft and receiving stolen property against Speed on Nov. 16. He was arraigned on those charges before Erie 6th Ward District Judge Dominick DiPaolo on Friday morning and was placed in the Erie County Prison on $35,000 bond.